<template>
  <scroll id="tab-menu">
    <div class="menu-list">
      <div class="menu-list-item" :class=" { active: index === currentIndex } "
        v-for="(      item, index      ) in categories" :key=" index " @click=" itemClick( index ) ">
        {{ item.title }}
      </div>
    </div>
  </Scroll>
</template>

<script>
import Scroll from '@/components/common/scroll/Scroll.vue'

export default {
  name: "TabMenu",
  components: {
    Scroll
  },
  props: {
    categories: Array
  },
  data ()
  {
    return {
      currentIndex: 0
    }
  },
  methods: {
    itemClick ( index )
    {
      this.currentIndex = index
      this.$emit( 'selectItem', index )
    }
  }
}
</script>

<style scoped>
#tab-menu {
  background-color: #f6f6f6;
  height: 100%;
  width: 100px;
  box-sizing: border-box;
}

.menu-list-item {
  height: 45px;
  line-height: 45px;
  text-align: center;
  font-size: 14px;
}

.menu-list-item.active {
  font-weight: 700;
  color: var(--color-high-text);
  background-color: #fff;
  border-left: 3px solid var(--color-high-text);
}
</style>
